<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>边距</title>
    <link rel="stylesheet" href="space.css" />
  </head>
  <body>
    <!-- #region margin -->
    <div class="bg-red m-16">I am div</div>
    <div class="bg-red m-16">I am div</div>
    <!-- #endregion margin -->

    <!-- #region padding -->
    <div class="bg-yellow p-16">I am div</div>
    <div class="bg-yellow p-16">I am div</div>
    <!-- #endregion margin -->
  </body>
</html>
